Question

Thirty five pupils, numbered from 1 to 35, are asked to form a line. The first pupil in the line is asked to leave, the second pupil remains. The third pupil is asked to leave the line, the fourth pupil remains... The process is repeated until one pupil remains in the line. What is the original number of the pupil that was left?

Answer 1

Answer:

17 pupil left please mark brainlist